By “feral” do you mean a fuzzy that was once domesticated and then turns wild again? There are wild fuzzies everywhere – we just don’t see them because they tend to keep their eyes closed. We tame them and breed domestic fuzzies… I suppose a domesticated fuzzy could return to the wild – that would be the ones that disappear into your household never to be seen again. The ones that run off with the cat. If you get a glimpse of them later one they no longer have their eyes open! Those would be feral ones!